Disk clutch.



DISK CLUTCH.

APPUCATION HLED JUNE 12. :9m

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SSMEETS-SHEST jnifyl ISAAC KOECHILIN, F LEVALLIS-1PERRET,

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Specification of Letters Patent.

lFntenteol. lone 235, llllllllih Applioaton tiled June 12, 1916, Serio?. No. 103.320.

To (all whom I? may concern .Be it known. that l; 'lslnio'.lllossonran, a eitizen ot the Republic ot France. residing at. 'il Rue Danton, Levallois-Tenet, Seine, France. have invented new andnselini lin proveniente in. Diel; Clutches., of which the following is a speeication.

'l'.his-f invention relates to a dink clutch for transinitting` power troni a driving shalt to a driven shaft, und is particularly applicable for use upon automobiles. `\f

The chief object is to provide a @hitch of thin type in which the thrust reqniredto release the disks taken up between the plates themselves and in tliereitore not transN initted either to the motor or to the, driven parte. A inrther ohject is to provide ineanr whereby release of the disks; or` 't'rictional plates upon both sides is assured.

My invention consists in the eonetruction. einnhination and arrangement of partons herein illustrated, described and claimed.

ln the aecoinpanyingn drawings forming part hereot.a is illustrated a forni of einl odinient of the invention, in which drawings Similar reference characters deeilginile corre- Spending` parte, and in which:

Figure l ie a. longitudinal section of the Clutch through Athe center;

lfigg. .2 is a Sectional elevation oi the clutch showing a4 variation of the arrangement for infoducingY the release of the Surfaces in con Vig. il Shows a Hide. elevation ot the mechashown in Fig: Land litiga 4l Shows a side elevation ol the mechi anisin Jfor controlling` a clutch` ol' the type Shown. in Fig. 2.

Referring to Fig. l it will he'neen that the ily wheel A of the motor is tornnd in two parte; which are asaeinhled and held together li); the bolts l. the headw` ot' which are coun iersnlnh in the tacos olg the ily Wheel. lll-atenl l--l and l are located \\'ill1iitlictly wheel and have holes through which the holte ll pase, so that these )lates rotate with the ily wheel. rlheJ plate PQE is 'formell in two pieeeslll and ll to permit o-l inouiiting. These platee turn then with the motor as illusdratod und may ot course loo driven lov any .,-ther means. They have near their ptr i'iphery, friction or wearingF surfaces or )arts (i (il oi" metal or other arroiriate nniteriai; and hearing between the plates E ism tor controlling; o ehueh oli the typeA The springs vl--i-ex'eit a torce upon the plates l. l. Causing snflieient pressure upon the friction surfaces oil the driven disk l for transmitting to this disk, and thereby to the driven shaft J. the power of the mhtor.

it suffices to withdraw one or other of the dielco'll) and l? in order that the disengage- `nient may he effected.

rlhe inner parte ot the plates l and F are fitted with erteneione adapted to rest upon llall-licarlnga -l and am.

ingghl, r to upon a collar lll concentric with the driven shaft Ji and the other hear! ine. i". rests upon a collar M which hears upon the collar lll. The collar N has :i thread cnt thereon Awhich meshes -ivith n thl'ead ent" inside ou" the, collar M so that; n'lien one ot' theee collars rotated With'respect` to the other the thread causes them to have relative longitudinal motion. rllhe collar lll tilted with a small flange 'n adapted to hear against the hearing' So that motion ol the rollar in thus transmitted to the plate -l The collar' lill has a` Similar flange fm, which' acts upon the hearing -a and 'transmite longitudinal movement to the plate E. f*

'ihe collar or Soren' lll has an arm fixed to if` free end either directly or through :i connection L being 'fastener to any point oi the chao-enY to prevent rotation ot the collar lll (eee Figs. l andwl).

rVlie co'llnr or Screw N has fined to i' an arm X which is operated hy the pedal l for disengagement through the crank and the eonnertion Il (nce Figi'. 3l. lli 1veiiiei1t of this pedal-causen4 an angular displacement ot the screw N in the nul ill thun causingy the hearings 4 and 'l to he moved toward each other and thc plates lll and VF to lie-moverte() that the friction snriiacen (l and G are moved away from contactwrith the disk il.

ln order lo a void the disengagement being made on 'a `eiogle side of the dish only so that, one of the surfaces G or il remains in contact with the disk, there have heen prome of theae heorlill lll)

ltudinaily displaced to allow of disengagement of the clutch. Likewise the arm X of the screw N is free to be displaced in the opposite direction when the clutch is opera iiigs. 2 and i of the drawings show a variation that permits. of obtaining the vsame regulation of movement as with the abutments It and S of Fig. l; In this ease the arm O, Fig. l, is replaced by the rigid f arm'() Fig. 2. This arm O is provlded at its extremity with a threaded holev serving for a nut to a screw l bearing a lever V. This screw is rotatably mounted in a bearing U fixed on the chassis, and is held` thereby from having axial movement.

As is shown, in .Fig i the arm X attached to the screw Nlandy the lever V are bound by a connection Z pivoted to the arms X and 7Win such a fashion that the movement of the pedal. causes an angular displacement ezt these arms.` The motion of the arm X causes rotary movement of the collar N in the collar lvl', this causing the plates to spread apart. At the same time the arm V rotates the screw T thus causing lon-- gitudinal movement of the collar M', and the threads on the screw T and the threads on the 'collars il and M are so designed that the plates lil and F move approximately equal distances away from the disk I as the clutch is released.-

It is to be remarked that, whatever the position, engaged or disengaged, the re-l actions occasioned by the forces of the springs and by the edorts of disengagement are always balanced and taken up between f the plates and there cannot therefore result any thrust either on the motoror on the driven shaft.

til

' Having now described my invention, I claim and desire to securev by Letters Patent:

l. A disk clutch containing in combination, driving shalt, a flywheel 'in two parts forming a continuous casing mounted upon said shaft, two plates disposed inside said flywheel, means for assembling-said lates means whereb thetl wheel roduces Y l the movement et the assembledlates, a driven shaft, a disk keyed to said s `aft and disposed between said assembled plates, the disk having one side normally in contact with one-I" said plates, a third plate disposed between the two assembled plates and normally in Contact .with the second. side of said disk, means whereby the lly wheel drives the'third plate, springs disposed between the third plate and the plate. of the vassembled pair-which is not in con`n tactwith the disk, two threaded collars screwed one upon the other and mounted .upon the driven shalt, means for producing the rotation of one ,of these collars, means for preventing the rotation of the other collar and means whereby the longitudinal displacement of said collars is transmit-ted to the assembled plates and the third plate, substantially as described and .for the purpose set forth.

2. A ,disk clutclrcontaining in combination, a driving shaft, a flywheel in two parts forming a continuous easing mounted on said shaft, bolts for assembling these two parts of the flywheel, two plates dis-- posed within the flywheel and traversed `by said bolts, assembling bolts for the saidv two plates, a driven shaft, a disk keyed to said shaft and disposed between said assembled plates, the disk having one side normally in Contact with one of said plates, a third'plate disposed between the two assembled plates. traversed by the flywheel assembling bolts, and normally in Contact with the second side of said disk, springs disposed between the` third plate and the plate of the assembled pair which is not in contact. with the disk, cylindrical extension pieces each being attached to one of these two latter plates respectively, these pieces surrounding the main shaft, threaded collars screwed one upon the other and mount.- ed upon the driven shaft, ball bearings disposed between said collars, abutments pro vided on said collars, means for producing the rotation of one of said collars, means for preventing the rotation of the other collar, and abutments disposed on the two parts of th"el flywheel for limiting the movement of the plates in contact with the disks, substantially as described and for the purpose set forth.

In testimony whereof I have signed my name to this specification. K I

ISAAC KOECHLIN. 'Witnessesz Louis Moens, CnAs. I. Innssnnr. 

